Wednesday, 1 January 2014

Winning The Environment War


WINNING THE ENVIRONMENT WAR

(Originally considered mid 1990’s)

     First a broad statement:- Man is killing the planet and the planet, being a living identity, will retaliate (if it hasn't already started - which it may have).

     Whether you agree or disagree with the statement at this time, it is what I believe.  Because of the scope of the problems I will confine remarks to Australia and include sections of the following subjects (which at some point can be interrelated):-

Water pollution, Dieback, Salinity - Water Table, Erosion

     River pollution in Australia is becoming worse.  There is no pointing the finger at anybody in particular, but just a general accusation that as a nation we have been complacent.  It appears that as the word is spread and as we start to work together things are improving. 

     River Pollution comes in many forms.  This includes deliberate dumping or flushing contaminated water and general debris into the storm water and river systems.  Water can be contaminated in industrial complexes through the industrial processes used but genuine concern, laws and the profit motive - clean up your act or we stop buying - are coming into use, to a greater or lesser extent, in an attempt to rectify problems.

     Man, apart from feeding waterways with pollution, has also interfered with the water-flow, with dams and diversions.  Because of the restrictions on water-flow, the water-flow paths are not being flushed like they were and, with the reduction in water-flow, toxic blue-green algae has bloomed in the last few years as never before.  To me, this is one form of nature retaliating.  As another side-effect of the reduced flow, land is not receiving fresh silt or being otherwise revitalized, through periodic flooding

     Dieback and Salinity - Water Table are part of a cause and effect problem.  Trees are removed for whatever reason; usually to make the land more accessible.  With nature's sponges removed, water is not retained in hill-slopes and collects in lower levels.  As a result the water-table rises and with it comes saltier water - salinity.  The trees that are left cannot tolerate the extra salt and so gradually die off.  This is slowly being combated by replanting on slopes and using more salt tolerate strains of vegetation, including trees, on lower levels.

     Removal of trees includes removal of root systems, therefore any strength in ground retention is drastically diminished.  Along water courses banks are more easily undercut by flash-flooding, which does happen, despite an earlier statement.  On the open land, because of the lack of trees to slow flash flooding, what remains of fertilized top-soil is removed, although, dependent on circumstances, mud is deposited.

     There is a lot more which could be said and although it may seem I have 'shot myself in the foot' with possibly contradictory argument, different areas of Australia have different problems at different times.  It does not detract from the fact that Man, particularly European-based Man, has drastically changed the face of the World, and the evidence is there, if the search is made with an open mind.

1 January 2014 – I think these thoughts still have merit.